Update traefik Docker tag to v3.7.7

Author: renovate[bot]

docker-compose.yml

@@ -71,7 +71,7 @@ services:
       - solr-data:/var/solr
 
   traefik:
-    image: traefik:v3.7.6@sha256:21a3d83696379bac6434bb32e1dde0aff0e84ef2abd053ed3db87d3f45e749b2
+    image: traefik:v3.7.7@sha256:1cb3845d7a05e1473c9086351426597e911db49db382b6e4769f9b0744962ac8
     restart: always
     container_name: traefik
     command: >-